Vital Dye Staining
Vital Dye Staining - Related Videos
08:22
Visualization of Caenorhabditis elegans Cuticular Structures Using the Lipophilic Vital Dye DiI
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Cited by 30 •
2012
We present a method to visualize cuticle in live C. elegans using the red fluorescent lipophilic dye DiI (1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate), which is commonly used in C. elegans to visualize environmentally exposed neurons. With this optimized protocol, alae and annular cuticular structures are stained by DiI and observed using compound microscopy.
06:55
Diagnosis of Neoplasia in Barrett’s Esophagus using Vital-dye Enhanced Fluorescence Imaging
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Cited by 1 •
2014
Vital-dye enhanced fluorescence imaging (VFI) is a novel in vivo technique that combines high-resolution epithelial imaging with exogenous topical fluorescent contrast to highlight glandular morphology and delineate neoplasia (high grade dysplasia and cancer) in the distal esophagus.
05:00
H&E Staining of Paraffin-Embedded Tissue Sections: A Differential Staining Technique to Visualize Liver Tissue Sections Using Combination of Hematoxylin and Eosin Dyes
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2025
In this video, we describe a technique of hematoxylin and eosin staining of paraffin-embedded tissue sections to study their histology. The procedure includes deparaffinization of the tissue followed by staining the cells in the tissue. Upon staining, the nucleus appears distinctly blue, and the proteins in the cytoplasm display pink coloration.
22:49
Optimized Staining and Proliferation Modeling Methods for Cell Division Monitoring using Cell Tracking Dyes
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Cited by 45 •
2012
Successful use of cell tracking dyes to monitor immune cell function and proliferation involves several critical steps. We describe methods for: 1) obtaining bright, uniform, reproducible label-ing with membrane dyes; 2) selecting fluorochromes and data acquisition conditions; and 3) choosing a model to quantify cell proliferation based on dye dilution.
06:32
Measuring Vital Signs
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2015
Source: Meghan Fashjian, ACNP-BC, Beth Israel Deaconess Medical Center, Boston MA The vital signs are objective measurements of a patient's clinical status. There are five commonly accepted vital signs: blood pressure, heart rate, temperature, respiratory rate, and oxygen saturation. In many practices, pain is considered the sixth vital sign and should regularly be documented in the same location as the other vital signs. However, the pain scale is a subjective measurement and, therefore, has a...
FAQs
The observed signal depends on how a dye interacts with living material. Some dyes enter through membrane transport or undergo selective uptake, whereas intact plasma membranes may exclude other dyes. These different interactions create color differences between cells or regions, allowing microscopy to reveal aspects of cellular condition, activity, or membrane integrity without requiring the material to lose viability.
An intact plasma membrane can prevent particular dyes from entering a cell, while damaged cells may show a different staining pattern because exclusion is no longer maintained. Consequently, color differences can help distinguish viable from damaged cells. The staining pattern should therefore be interpreted as an indicator of cellular condition rather than as a simple map of cell presence.
Because dye interactions can reflect selective uptake and transport, staining may provide information about more than viability. Researchers can use it to examine cell structure and function, follow movement and development, and assess organelle or tissue function. These observations are especially valuable when microscopy is used to monitor physiological changes in living biological material over time.
A typical workflow begins with living cells, tissues, or organisms and exposes the material to a suitable vital dye. Researchers then examine the resulting color differences with microscopy, relating the pattern to membrane exclusion, selective uptake, or transport. They can compare regions or cells to assess viability, structure, function, movement, development, or treatment-associated changes.
This technique is useful when the experimental question requires viability information while the biological material remains available for observation. Differences in dye uptake or exclusion can separate viable cells from damaged ones during microscopy-based studies. That capability supports investigations of cellular condition and makes the method relevant to experiments examining physiology, pathology, or responses to experimental treatments.
Biologists apply the approach to track movement and development, examine organelle or tissue function, and visualize changes during experimental treatments. Its value extends across physiology and pathology because researchers can observe living material while relating staining patterns to structure or activity. In microscopy-based experiments, these outcomes help connect visible cellular changes with broader biological processes.